Invention Grant
- Patent Title: Guide wire with hydrophilically coated tip
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Application No.: US09874794Application Date: 2001-06-05
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Publication No.: US06656134B2Publication Date: 2003-12-02
- Inventor: Richard G. Cornelius , Anthony Kelzenberg , Michael J. Urick , Brian R. Reynolds
- Applicant: Richard G. Cornelius , Anthony Kelzenberg , Michael J. Urick , Brian R. Reynolds
- Main IPC: A61B500
- IPC: A61B500

Abstract:
A guide wire including a lubricous distal portion and a less lubricous intermediate portion proximal of said distal portion. One guide wire provides a highly lubricous distal portion with a hydrophilic layer and a less lubricous intermediate portion with a hydrophobic layer. Another guide wire provides a lubricous distal portion with a polymer tip that is itself hydrophilic. Yet another guide wire provides a less lubricous intermediate portion using a stainless steel coil helically wound around the tapering intermediate portion. The coil is preferably coated with a hydrophobic coating such as PTFE or silicone. The coil can either abut the distal portion proximal end or extend into the distal portion interior.
Public/Granted literature
- US20020045885A1 Guide wire with hydrophilically coated tip Public/Granted day:2002-04-18
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